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During development chromaffin and steroidogenic cells appear early after hatching in the pronephric kidney, at the level of the ducts of Cuvier and of the cephalic part of the posterior cardinal veins.

在发展铬细胞固醇和孵化后出现的早期鳜肾脏在水平的管道和Cuvier的一部分头后部主教脉。

To obtain the correlativity related to the stress range S〓, the rain-flow method is modified and the stress cycling is recorded in accordance with the order of whole cyclic loops.

为了得到与应力脉S〓有关的相关特性，本文改进了通常的雨流计数法，将应力循环按照其完整迟滞回线的先后次序记录下来。

A numerical simulation by program computation was presented to study electron cyclotron resonance master of TE's mode,which was applied particle-in-cell method and a electromagnetic mode based on theoretical analysis.

采用等离子体粒子模拟的方法，在理论研究基础上应用电磁模型，编写了TE模式的电子回旋脉塞等离子体粒子模拟程序并进行了数值模拟。

Leaves 2--4; scapes 1--3, cyme few flowered; sepals 5--10 mm, with 7--9 vein anastomoses

叶2 --4 ；花葶1 --3，聚伞花序很少花；萼片5-10毫米，具7-脉吻合 2 A。

This cymometer uses CPLD to realize the measuring count of frequency、period、pulse width and occupy-empty ratio.

该频率计利用CPLD来实现频率、周期、脉宽和占空比的测量计数。

The Cymometer CPLD to use frequency, cycle, pulse width and duty cycle measurement count.

该频率计利用CPLD来实现频率、周期、脉宽和占空比的测量计数。

This cymometer uses FPGA to realize the measuring countoffrequency、period、pulse width and occupy-empty ratio.

该频率计利用FPGA来实现频率、周期、脉宽和占空比的测量计数。

Photographer/ Filmmaker/ Painter/ Obsessive dabbler. Fingers in many hot pies - advertising, fashion and Art. On an Ahab style mission to plunge into the pulsating infinate! A quest to snare the elusive and ephemeral.

摄影师，电影制片人，画家，有想法的艺术家，涉足于许多热门的时装设计和艺术，在光环风格使命中投入脉动无限，模糊和短暂的探求。

As cement, authigenic mineral or vein, dawsonite is found not only in marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.

片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。

Otherwise, wide pulse and slow falling edge can cause the errors of surface recombination velocities and bulk lifetime extracted from the photoconductive decay curve.

否则脉冲光过长的脉宽和下降沿将对光电导衰减曲线中进一步分离出的表面复合速度和少子体寿命结果造成误差。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。